Acetylene-gas generator.



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ACETYLENE GAS GENERATOR.

' (Application filed July 14, 1898.

No Model.)

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JAMES Moxon soHoFIELD, on sTocKToN, CALIFORNIA.

AcTYLENE-GAS GENERATOR.

SPECIFICATIO forming part of Letters Patent No. 629,701, dated July 25,1899.

Application filed July 14, 1898. Serial No. 685,919. (No model.)

To all whom it may concern:

Be it known that I, JAMES MoxoN SoHo- FIELD, a citizen of the UnitedStates, residing at Stockton, in the county of San Joaquin and State ofCalifornia, have invented certain new and useful Improvements inAcetylene-Gas Generators; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to acetylene-gas generators; and the object is toprovide'a simple, safe, compact, and comparatively automatic generatorof this class for domestic purposes.

To this end the invention consists in the construction, combination, andarrangement of the device, as will be hereinafter more fully described,and particularly pointed out in the claim.

In the accompanying drawings the same reference characters indicate thesame parts of the invention.

Figure 1 is a perspective view of my improved acetylene-gas generator.Fig. 2 is a vertical section of the same.

1 represents the tank, which is formed with a tapering bottom 2, fromthe lowermost point of which a lateral pipe 3 connects with a verticalpipe 4, which terminates in'a valve 5'for conveniently drawing off aportion of the wa.

ter in the tank when desired.

6 represents the outlet-pipe, from the lower end of which the connectionis made with the service-pipe for the consumption of the gas.

7 denotes the inlet-pipe, leading from the generator-chamber 8, and itis provided with a check-valve 9 and a plug-cock 10, the stern of whichcarries a bifurcated lever 12. A pipe 13 extends from the lower part ofthe tank 1 up through the bottom of the chamber 8, and it is providedwith ahand-valve 14. for controlling the flow of water from the tank tothe carbid-chamber. The bottom 15 of the chamber 8 is also conical orconcave, so that the spent residue may be discharged through theoutlet-pipe 16. Y

17 represents the gas-holder, which has a vertical movement in the tank,its upper end being provided with guide-rollers 18 1S, which traversethe vertical guide-rods 19, fixed to the tank.

2O 2O denote a series of removable Weights which may be increased ordiminished at will to control the pressure of the gas in the holder.

21 represents the flaring spout or mouth by means of which the tank issupplied with wa-v ter, and 22 denotes a rod depending from the top ofthe gas-holder and terminating in a coupling 23, in which is secured theupper end of the valve-rod 24C, the lower end of which is turnedoutwardly to form the arm 25, which engages the bifurcated end of thelever 12.

26 represents the removable cap or cover of the chamber 8,'which issecured in place by means of the clamp 27 and thumb-screw 28.

29 denotes the foraminous carbid cage, which is provided at its upperend with a folding bail for conveniently removing and replacing it inthe generator.

The operation is as follows: Water is first placed in the tank to thelevel indicated and a suitable charge of calcio carbid placed in thecage, which is then inserted in the generator-chamber 8. The valve 14.is now opened to admit a sufficient amount of Water from the tank to thechamber 8, which, coming in contact with the carbid,immediately startsthe generation of the gas, which passes through the pipe 7 into theholder 17, from whence it is carried out for. consumption through theservice-pipe 6. As the holder rises under the iniiuence of the gas thearm 25 engages the bifurcated end of thelever 12, thereby closing thevalve 10 and preventing the passage of the gas from thegenerating-chamber through the pipe 7 into theholder.Anyfurthergeneration of gas will force the water in the lower part ofthe chamber ont through the pipe 13 and into the tank, and thereby checkthe generation of the gas. As soon as sufficient gas has been withdrawnfrom the holder to permit it to fall until the arm 25 has opened thevalve 10 the communication is restablished between the generator and theholder and the Water in the tank flows through the pipe 13 into the,chamber 8,where it again starts the gas generating,

as inthe first instance.

Having thus fully described my invention,

what I claim as new and useful, and desire to secure by Letters Patentof the United States, 1s-

The combination with the tank, the holder mounted within the tank, therod 22 fixed to said holder and terminating in the coupling 23, aset-screw carried by said coupling the Valve-rod 24 having its upper endadjustably` secured in said coupling, and its lower end terminatinginthe lateral arm 25, of the generator-chamber, the pipe 7 connecting saidchamber and tank and provided with the valve 10, and the bifureatedlever 12 carried by said valve and adapted to ooaot with the lateral armon said valve-rod, substantially I5 as shown and described.

In testimony whereof I have hereunto set my hand in presence of twosubscribing Witnesses.

JAMES MOXON S'CHOFIELD.

Vitnesses:

ELIHU B. S'rown, ALBERT L. TOWNE.

